Possible Clues:

• Ontologist's concern
• Exit scene transforming life
• Life when sixteen's hectic and not half nice!
• Being old, have gun when diamonds are about
• A way of living
• It's a living thing
• Old weapon put in cold storage for life
• Exit scene unfortunately could put paid to it!
• '05 Dark Suns album about everything that is?
• Being sixteen, maybe, at church